Home / 428,800.16-591,780.58-237,875.06

Finding the Fourth Proportional to 428,800.16, 591,780.58 and 237,875.06

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Solution

The fourth proportional to 428,800.16, 591,780.58 and 237,875.06 is: 328,287.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,800.16 : 591,780.58 = 237,875.06 : x
  2. Step 2: Convert to fraction form
    428,800.16/591,780.58 = 237,875.06/x
  3. Step 3: Cross multiply
    428,800.16x = 591,780.58 × 237,875.06
  4. Step 4: Simplify right side
    428,800.16x = 140,769,841,859.10
  5. Step 5: Solve for x
    x = 140,769,841,859.10/428,800.16
  6. Step 6: Final answer
    x = 328,287.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.